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 Code of Federal Regulations (Last Updated: May 6, 2024)
 Title 40 - Protection of Environment
 Chapter I - Environmental Protection Agency
 SubChapter C - Air Programs
 Part 60 - Standards of Performance for New Stationary Sources
 Subpart Ja - Standards of Performance for Petroleum Refineries for Which Construction, Reconstruction, or Modification Commenced After May 14, 2007

  Table 1 to Subpart Ja of Part 60 - Molar Exhaust Volumes and Molar Heat Content of Fuel Gas Constituents  

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  • Table 1 to Subpart Ja of Part 60 - Molar Exhaust Volumes and Molar Heat Content of Fuel Gas Constituents

    Constituent MEVa
    dscf/mol     		MHCb
    Btu/mol
    Methane (CH4) 7.29 842
    Ethane (C2H6) 12.96 1,475
    Hydrogen (H2) 1.61 269
    Ethene (C2H4) 11.34 1,335
    Propane (C3H8) 18.62 2,100
    Propene (C3H6) 17.02 1,947
    Butane (C4H10) 24.30 2,717
    Butene (C4H8) 22.69 2,558
    Inerts 0.85 0

    a MEV = molar exhaust volume, dry standard cubic feet per gram-mole (dscf/g-mol) at standard conditions of 68 °F and 1 atmosphere.

    b MHC = molar heat content (higher heating value basis), Btu per gram-mole (Btu/g-mol).

    [77 FR 56480, Sep. 12, 2012]